automagic – Automagic numbering in Plain TeX
Provides section macros, automatically numbered, automatic numbering of equations, provision for a table of contents, and a primitive label mechanism.
Maybe you are interested in the following packages as well.
- label-pln: Print address labels in three columns
- twocolumns: Knuth's two-column output macros
- histyle: A "HighStyle" environment for TeX
- lextex: Typesetting legal documents using plain TeX